P0570: Cruise control ACCEL signal — signal malfunction — what it means, the affected system and what to check before replacing parts.
Meaning, symptoms, causes and checks
The monitor for cruise control accel signal reports a fault associated with the named signal, not automatically a failed control module. This is cruise control, not power steering. The named input or actuator must be matched to the vehicle diagram before interpreting the fault.
Affected system: Cruise control inputs and actuators
Symptoms
- Warning light may illuminate
- System function may be impaired
- Symptoms depend on the vehicle and fault conditions
Possible causes
- Switch contact, clock spring, wiring, or control module input faults can disrupt cruise functions.
- Connector, wiring, ground, or supply-voltage fault
- Vehicle-specific mechanical or control problem
What to check
- Record codes and freeze-frame data
- Observe cruise switch states in live data while pressing each control; inspect buttons, clock spring, and wiring.
- Compare results with vehicle-specific service information
- Verify the repair and monitor readiness
- Observe cruise switch states in live data while pressing each control; inspect buttons, clock spring, and wiring.
- Repair the confirmed cause and retest under the original fault conditions
Also written as: P0570-00, P057000, PO570 (some scan tools add the fault-type byte, e.g. -00).